Synonyms for Mire (same or very similar meaning)
WordNet sense 1 (deep soft mud in water or slush):
slop
WordNet sense 2 (a soft wet area of low-lying land that sinks underfoot):
morass, quagmire, slack, quag
WordNet sense 3 (entrap):
entangle
WordNet sense 4 (be unable to move further):
bog down, grind to a halt, get stuck
WordNet sense 5 (soil with mud, muck, or mire):
muck, mud, muck up
From the ODE community, based on WordNet
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